Hitachi RAS-(4-12)HRNM(2)(E) - Procedure for Checking Each Main Part

8 Troubleshooting
289
SMGB0064 rev.0 - 08/2011
8
Contents for Check mode 2
When more than three indoor units are connected to remote control switch, the latest data of only the rst three indoor units
are connected serially are displayed.
If you press the part “▲” of the TEMP switch, the next display appears. If you press the past “▼” of the TEMP switch, the
previous display appears.
Temperature indication
1
Indoor unit air inlet
temp. at thermistor
(°C)
 
2
Indoor unit discharge
air temp. at thermistor
(°C)
 
3
Indoor unit heat
exchanger liquid
pipe temp. (freeze
protection) (°C)
 
4
Outdoor temperature
(°C)
 
5
Indoor unit heat
exchanger gas pipe
temp. (°C)
 
6
Evaporating temp.
at heating (°C)
 
7 Control information
 
8
Discharge gas temp.
at the top of comp.
chamber (°C)
 
Compressor pressure/frequency indication
9
Discharge pressure
(high) (x 0.1 MPa)
 
10
Suction pressure (low)
(x 0.01 MPa)
 
11 Control information
 
12
Operating frequency
(Hz)
 
Indication of the category code
Indication of the temperature, etc
Corresponds to check mode 1 “

”
Corresponds to check mode 1 “”
Corresponds to check mode 1 “

”
Corresponds to check mode 1 “

”
Corresponds to check mode 1 “

”
Corresponds to check mode 1 “

”
Corresponds to check mode 1 “”
Corresponds to check mode 1 “”
Corresponds to check mode 1 “”
Corresponds to check mode 1 “”
Corresponds to check mode 1 “”
Corresponds to check mode 1 “

”
Expansion opening indication
13
Indoor unit expansion
valve opening (%)
 
14
Outdoor unit
expansion valve mv1
opening (%)
 
Estimated electric current indication
15
Compressor running
current (A)
 
 Returns to temperature indication
Corresponds to check mode 1 “”
Corresponds to check mode 1 “”
Corresponds to check mode 1 “”
The total value is displayed when several compressors are running